> 英语 >
_____scores of times,but he still couldn't understand it.
A.Having explained
B.Having been explained
C.Though it was explained
D.It was explained
为什么不选B呢?
人气:276 ℃ 时间:2019-10-20 00:16:19
解答
D
因为后面用了but,所以前面的句子一定要是一个独立的句子,只有D是一个独立的句子.
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